Mountain Mint Guide
Mountain mint grows well in warm temperatures between 55°F-75°F. They do great in containers and gardens. Bank on Seeds recommends transplanting.
If Direct Seeding
- Direct seed outside 4-5 weeks after last frost date; or
- Direct seed into a container 8-10 inches deep and wide anytime of the year. It can be placed outside when the temperature is between 55°F-75°F; or
Begin the growing season early and start the mountain mint seeds indoors in pods 6 weeks before the last frost date; germination is best between 65°F-75°F. It can be transplanted outside 10 weeks later.
Sow mountain mint seeds 1/8-inch-deep, 12 inches apart with rows spaced 12 inches in between. Germination will take 7-14 days. Thin to 12 inches apart when the seedlings start competing for space or light.
Mountain mint only needs well-drained soil. They also love full sun but will tolerate partial shade. Water every week in the first 4 weeks. Once established, water regularly, letting the soil dry before watering again – check the top 2-3 inches and if dry, then water the soil.
Fertilizer is not required but there is the option to add slow release fertilizer once a year or mix in aged compost or use 10-10-10 fertilizer every 12 weeks.
Mountain mint is full grown (mature) in 70-90 days. Harvest the leaves at any size by pinching off stems or wait until just before the plant blooms then cut the whole plant and hang it upside down to dry. These leaves will be most flavorful and ready to be used for teas or attracting bees. Cutting back often promotes bushier growth.
Pretty much free of pests and diseases. Ensure adequate air circulation and well-drained soil and the mountain mint should thrive.
*Plant mountain mint with coreopsis, strawberries, marigolds, nasturtiums, cabbage family plants, tomatoes, and carrots. Avoid planting with lavender, rosemary, sage and thyme. *